Create a parameter `STOP_WAIT_TIME` for the startup script
that configures the time in seconds to wait for a normal
shutdown. Because of #4941 we also send a shutdown half
way the countdown.

Fixes gh-7121

* pr/7105:
  Polish ReservoirFactory support
  Enable custom Reservoir with Dropwizard metrics

Polish Dropwizrd reservoir support including a refactor of
`ReservoirFactory` to allow reservoirs to be created based on a
metric name.

See gh-5199
See gh-7105

Uses the ReservoirFactory to customize the implementation of
the Reservoir that will be used when creating Timer and Histogram
in the DropwizardMetricServices.

Fixes gh-5199
Closes gh-7105

See gh-7681

By configuring security.oauth2.client.grantType=client_credentials the
user signals that (even in a web application) he doesn't want to use
the auth code grant (and hence session and request scoped beans for
client context).

Closes gh-7700

* pr/7639:
  Broaden LoggingApplicationListener ignores

Update `LoggingApplicationListener` to ignore all `-D` prefixed
property values. As well as catching the Azure use-case, this update
now means Spring Boot application can start when Tomcat is missing
`CATALINA_BASE\conf\logging.properties` and sets the value `-Dnop`.

Closes gh-7639

Update the fix committed in a2d46dc1 to fallback to reflection based
invocation in case earlier versions of Logback are being used.

Closes gh-7638

Update `MockitoPostProcessor` so that `@SpyBean` will automatically
pick the `@Primary` bean when multiple candidates exist.

Fixes gh-7621

Add an integration test to check that @SpyBean can be used with on a
bean definition that returns a generic type.

Closes gh-7625

See gh-7652

This commit improves ValidationAutoConfiguration so that a `Validator`
bean is exposed if JSR 303 is available. This has the side effect of
automatically enable Spring Data Couchbase's entity validation rather
than requiring to expose a `Validator` bean.

Closes gh-5178

Closes gh-7412

Closes gh-7412

See gh-7601

Closes gh-7686

Closes gh-7685

Closes gh-7684

Closes gh-7683

Closes gh-7682

Closes gh-7681

Closes gh-7680

Closes gh-7679

Closes gh-7678

Closes gh-7677